.wrap {
    width: 80%;
    margin: 0 auto;
}

h2 {
    margin-bottom: 20px;
    text-align: center;
}

#addStudent {
    float: right;
    margin-right: 15px;
}

#template {
    display: none;
}

#mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .5);
    display: none;
}

#pop {
    padding: 30px 50px;
    width: 600px;
    background-color: #fff;
    border-radius: 10px;
    transform: translate(-50%, -50%);
    position: fixed;
    top: 50%;
    left: 50%;
    display: none;
}

#pop h2 {
    margin-bottom: 20px;
}

select {
    margin-top: 7px;
}